A case of severe bony ankylosis of the temporomandibular joint

DOI 7 References
  • FUJISAWA Kenji
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Tokushima
  • TOBIUME Satoru
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Tokushima
  • KAMATA Nobuyuki
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Tokushima
  • NAGAYAMA Masaru
    First Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Tokushima
  • YAMANOUCHI Kouji
    Dentistry and Oral Surgery, Tokushima Red Cross Hospital

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Other Title
  • 高度な骨性癒着をきたした顎関節強直症の１例

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A case of severe bony ankylosis of the temporomandibular joint, which caused micrognathia, is reported. A 43-year-old man was referred to our clinic with the main problem of trismus. He had jaw movement limitation due to TMJ ankylosis, resulting from the fracture of bilateral condylar processes in his childhood. The maximum mouth opening was 11mm, and X-ray examination revealed deformity of the bilateral mandibular heads and severe bony ankylosis on the left mandibular head. We performed an osteoarthrotomy and inserted a free skin flap to the resected area on the left side. On the right side, a condylectomy was performed. After the operation, the maximum mouth opening increased to 30mm, but micrognathia remained. Therefore, we conducted genioplasty and an iliac bone graft, at 11 months after the initial operation. Since these operations, the patient has been satisfied with the result of improvement of mouth opening disturbance and facial appearance.

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